參數(shù)資料
型號: RV5C339
廠商: Ricoh Co., Ltd.
英文描述: 3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
中文描述: 3線串行接口實(shí)時時鐘IC,帶有電壓檢測功能
文件頁數(shù): 16/51頁
文件大小: 421K
代理商: RV5C339
RV5C339A
20
Day-of-week
12-hour mode
24-hour mode
Preset alarm time
Sun. Mon. Tue. Wed. Thu.
Fri.
Sat.
10-hour 1-hour 10-min 1-min 10-hour 1-hour 10-min 1-min
WW0 WW1 WW2 WW3 WW4 WW5 WW6
00:00 a.m. on all days
1
2
0
01:30 a.m. on all days
1
0
1
3
0
1
3
0
11:59 a.m. on all days
1
5
9
1
5
9
00:00 p.m. on
0
1
0
3
2
0
1
2
0
Mondays to Fridays
01:30 p.m. on Sundays
1
0
2
1
3
0
1
3
0
11:59 p.m. on Mondays,
0
1
0
1
0
1
0
3
1
5
9
2
3
5
9
Wednesdays, and Fridays
Note that the correspondence between WW0 to WW6 and the days of the week shown in the above table is only an
example and not mandatory.
D7
D6
D5
D4
D3
D2
D1
D0
DM40
DM20
DM10
DM8
DM4
DM2
DM1
0
DM40
DM20
DM10
DM8
DM4
DM2
DM1
0
Indefinite
Indefinite Indefinite Indefinite Indefinite Indefinite Indefinite
(For writing)
(For reading)
Default settings*
2.8-1 Alarm_D Minute Register (at Address Bh)
D7
D6
D5
D4
D3
D2
D1
D0
DH20,DP/A
DH10
DH8
DH4
DH2
DH1
0
DH20,DP/A
DH10
DH8
DH4
DH2
DH1
0
Indefinite Indefinite Indefinite Indefinite Indefinite Indefinite
(For writing)
(For reading)
Default settings*
2.8-2 Alarm_D Hour Register (at Address Ch)
2.8 Alarm_D Register (at Address Bh and Ch)
*) Default settings: Default value means read/written values when the XSTP bit is set to “1” due to power-on from 0 volts or supply voltage drop.
The D5 bit represents DP/A when the 12-hour mode is selected (0 for a.m. and 1 for p.m.). and DH20 when the 24-
hour mode is selected (tens in the hour digits).
The Alarm_D registers should not have any non-existent alarm time settings. (Note that any mismatch between
current time and preset alarm time specified by the Alarm_D registers may disable the alarm circuit.)
When the 12-hour mode is selected, the hour digits read 12 and 32 for 0 a.m. and 0 p.m., respectively (see “2.1-2
12/24: 12-/24-hour Mode Selection Bit”).
Example of Alarm Time Setting
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RV5C339A 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
RV5C339A_03 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION
RV5C339A-E2 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
RV5C348A 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
RV5C348B 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION